Sand mixing device for machining elbow

Abstract

The utility model relates to the technical field of elbow processing, and provides a sand mixing device for processing elbows, which comprises a support frame, a support shaft rod fixedly connected to the top end of the support frame, an assembly frame rotatably connected to the middle of the support shaft rod, a sand carrying cylinder fixedly connected to the bottom end of the assembly frame, and a guide through groove formed in one end of the support frame, a linkage rod is fixedly connected to the side, close to the guide through groove, of the sand carrying cylinder and further movably connected into the guide through groove, a transmission assembly is arranged at the end, close to the linkage rod, of the supporting frame and used for being matched with the linkage rod to drive the sand carrying cylinder to swing, and a sand mixing assembly is arranged in the sand carrying cylinder. The transmission assembly comprises a displacement plate, a linkage through groove, an extension base and a driving motor. By means of the technical scheme, the problems that in the prior art, the mixing mode is single, the sand mixing roller is difficult to make full contact with molding sand, and blind areas are prone to occurring on the whole are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to elbow processing technical field, specifically, and relates to a sand mixing device for processing elbow. BACKGROUND

[0002] Elbow is a kind of connecting pipe fitting commonly used in water heating installation, mainly used for the connection of pipe bend, it connects two pipes with same or different nominal diameter, makes the pipe turn to various degrees, elbow plays a vital role in chemical industry, petroleum industry, electric power industry, has excellent corrosion resistance and high pressure resistance;

[0003] At present, in elbow casting, sand mould is the key process material for forming and supporting, sand mould forms the cavity matched with elbow design after compaction, and the liquid metal is solidified to form the casting after injection;

[0004] The sand mould needs to be mixed with mixed binder and sand particles by sand mixing device when being put into use, the surface roughness of sand mould is reduced, the risk of sand sticking, air hole and other defects on the surface of elbow is reduced, and the surface of casting is smoother;

[0005] However, the sand mixing device in the prior art has a single mixing mode, so that the sand mixing roller cannot fully contact the sand, and the whole device is prone to blind area.

[0006] Therefore, we propose a sand mixing device for processing elbow. CONTENT OF THE UTILITY MODEL

[0007] The utility model provides a sand mixing device for processing elbow, which solves the problem of single mixing mode in the related art, which makes the sand mixing roller difficult to fully contact the sand and prone to blind area.

[0008] The technical scheme of the utility model is as follows: a sand mixing device for processing elbow, comprising a support frame, a support shaft is fixedly connected to the top end of the support frame, a mounting frame is rotatably connected to the middle part of the support shaft, a sand loading cylinder is fixedly connected to the bottom end of the mounting frame, a guide groove is formed in one end of the support frame, a linkage rod is fixedly connected to the side of the sand loading cylinder close to the guide groove, and the linkage rod is also movably connected in the guide groove, a transmission assembly is arranged on the end of the support frame close to the linkage rod, the transmission assembly is used to drive the sand loading cylinder to swing in cooperation with the linkage rod, and a sand mixing assembly is arranged in the sand loading cylinder.

[0009] Preferably, the transmission assembly comprises a displacement plate, a linkage channel, an extension seat and a driving motor, one end of the support frame close to the linkage rod is slidably connected with the displacement plate, the middle part of the displacement plate is provided with the linkage channel, and the end of the linkage rod away from the sand carrying cylinder is movably connected in the linkage channel, the bottom of one end of the support frame is fixedly connected with the extension seat, the top of the extension seat is fixedly connected with the driving motor, the output end of the driving motor is fixedly connected with the eccentric plate, the end of the eccentric plate away from the driving motor is fixedly connected with the linkage column, and the linkage column is movably connected in the linkage channel.

[0010] Preferably, the sand mixing assembly comprises a positioning plate, a sand mixing shaft, a sand mixing roller and a transmission bevel gear, the top end in the sand carrying cylinder is fixedly connected with the positioning plate, the vertical rotating end of the middle part of the positioning plate is connected with the sand mixing shaft, the bottom end of the sand mixing shaft is fixedly connected with the sand mixing roller, the top end of the sand mixing shaft is fixedly connected with the transmission bevel gear, and one end of the support shaft is fixedly connected with the driving bevel gear.

[0011] Preferably, the two ends of the bottom of the sand carrying cylinder are fixedly connected with the sand discharging pipes, and the middle part of the sand discharging pipe is provided with a valve.

[0012] Preferably, the guide channel is arc-shaped, and the inside of the guide channel and the outside of the linkage rod are fixedly connected with wear-resistant rings.

[0013] Preferably, one end of the support frame close to the linkage rod is fixedly connected with a linear guide rail, the top end and the bottom end of the displacement plate are fixedly connected with linear sliding blocks, and the displacement plate is slidably connected on the linear guide rail through the linear sliding blocks.

[0014] Preferably, the top end of the positioning plate is fixedly connected with a protective shell, and the side close to the support shaft of the protective shell is provided with an avoiding opening.

[0015] Preferably, the outside of the sand mixing roller is fixedly connected with sand mixing fan blades, and the number of the sand mixing fan blades is not less than two.

[0016] The working principle and beneficial effects of the utility model are as follows:

[0017] In the utility model, the sand carrying cylinder can realize the transmission of the kinetic energy of the sand mixing roller while reciprocating, the sand can be more fully contacted with the sand mixing roller, the operation blind area of the sand mixing roller is greatly reduced, and the whole is more efficient. ACCURACY OF DRAWINGS

[0018] The utility model will be explained further in detail in combination with the drawings and specific embodiments.

[0019] Figure 1It is a structure schematic view of the utility model;

[0020] Figure 2 It is a schematic view of the internal structure of the sand carrying cylinder of the utility model;

[0021] Figure 3 It is a structure schematic view of the transmission assembly of the utility model;

[0022] Figure 4 It is a structure schematic view of the sand mixing assembly of the utility model;

[0023] Figure 5 It is a connection structure schematic view of the transmission bevel gear and the driving bevel gear of the utility model.

[0024] In the figure: 1, support frame; 2, support shaft; 3, assembly frame; 4, sand carrying cylinder; 5, guide slot; 6, linkage rod; 7, transmission assembly; 8, sand mixing assembly; 9, displacement plate; 10, linkage slot; 11, extension seat; 12, driving motor; 13, eccentric plate; 14, linkage column; 15, positioning plate; 16, sand mixing shaft; 17, sand mixing roller; 18, transmission bevel gear; 19, driving bevel gear. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are involved in the protection scope of the utility model.

[0026] Embodiment 1

[0027] As Figures 1-5 shown, the embodiment proposes a sand mixing device for processing elbow, which comprises a support frame 1, the top end of the support frame 1 is fixedly connected with a support shaft 2, the middle part of the support shaft 2 is rotatably connected with an assembly frame 3, the bottom end of the assembly frame 3 is fixedly connected with a sand carrying cylinder 4, one end of the support frame 1 is provided with a guide slot 5, one side of the sand carrying cylinder 4 close to the guide slot 5 is fixedly connected with a linkage rod 6, and the linkage rod 6 is also movably connected in the inside of the guide slot 5, one end of the support frame 1 close to the linkage rod 6 is provided with a transmission assembly 7, the transmission assembly 7 is used for driving the sand carrying cylinder 4 to swing in cooperation with the linkage rod 6, and the inside of the sand carrying cylinder 4 is provided with a sand mixing assembly 8;

[0028] In the embodiment, the two ends of the bottom of the sand carrying cylinder 4 are fixedly connected with sand discharge pipes, and the middle part of the sand discharge pipe is provided with a valve, by the setting of the sand discharge pipe, the sand can be conveniently guided out of the sand carrying cylinder 4 after sand mixing;

[0029] In the embodiment, the guide channel 5 is arc-shaped, and the inner part of the guide channel 5 and the outer side of the linkage rod 6 are fixedly connected with wear-resistant rings. Through the structural characteristics of the guide channel 5, when the linkage rod 6 is displaced along the guide channel 5, the sand carrying cylinder 4 can be driven to rotate adaptively under the support of the support shaft 2. In combination with the arrangement of the wear-resistant rings, the wear of the guide channel 5 and the linkage rod 6 can be slowed down. Here, the material of the wear-resistant rings can be rubber.

[0030] The transmission assembly 7 comprises a displacement plate 9, a linkage channel 10, an extension base 11 and a driving motor 12. The support frame 1 is slidably connected with the displacement plate 9 at one end close to the linkage rod 6. The middle part of the displacement plate 9 is provided with the linkage channel 10, and the end of the linkage rod 6 away from the sand carrying cylinder 4 is movably connected in the inner part of the linkage channel 10. The bottom of one end of the support frame 1 is fixedly connected with the extension base 11, and the top end of the extension base 11 is fixedly connected with the driving motor 12. The output end of the driving motor 12 is fixedly connected with an eccentric plate 13, the end of the eccentric plate 13 away from the driving motor 12 is fixedly connected with a linkage column 14, and the linkage column 14 is movably connected in the inner part of the linkage channel 10.

[0031] In the embodiment, the end of the support frame 1 close to the linkage rod 6 is fixedly connected with a linear guide rail, and the top end and the bottom end of the displacement plate 9 are fixedly connected with linear sliding blocks. The displacement plate 9 is slidably connected to the linear guide rail through the linear sliding blocks. Through the arrangement of the linear guide rail and the linear sliding blocks, the displacement of the displacement plate 9 can be effectively guided, so that uncontrollable displacement of the displacement plate 9 is avoided, and the stability of the displacement plate 9 during displacement is greatly ensured. Here, the displacement plate 9 is in the shape of an I-beam.

[0032] Embodiment 2

[0033] As shown in Figures 1-5 , based on the same concept as in the above embodiment 1, the embodiment also proposes a sand mixing assembly 8.

[0034] In the embodiment, the sand mixing assembly 8 comprises a positioning plate 15, a sand mixing shaft 16, a sand mixing roller 17 and a transmission bevel gear 18. The top end of the inner part of the sand carrying cylinder 4 is fixedly connected with the positioning plate 15. The middle part of the positioning plate 15 is vertically rotatably connected with the sand mixing shaft 16. The bottom end of the sand mixing shaft 16 is fixedly connected with the sand mixing roller 17. The top end of the sand mixing shaft 16 is fixedly connected with the transmission bevel gear 18. One end of the support shaft 2 is fixedly connected with a driving bevel gear 19, and the driving bevel gear 19 is meshingly connected with the transmission bevel gear 18.

[0035] In the embodiment, the top end of the positioning plate 15 is fixedly connected with a protective shell, and the side of the protective shell close to the support shaft 2 is provided with an avoiding opening. Through the arrangement of the protective shell, the connection part of the transmission bevel gear 18 and the driving bevel gear 19 can be protected, so that the molding sand is prevented from adhering to the transmission bevel gear 18 and the driving bevel gear 19.

[0036] In the embodiment, the mixing sand roller 17 is fixedly connected with mixing sand leaves on the outer side, and the number of the mixing sand leaves is not less than two. The mixing sand leaves can improve the contact effect of the mixing sand roller 17 and the sand.

[0037] One specific application of the above two embodiments is that the sand is first poured into the sand carrying cylinder 4, and then the driving motor 12 is started to drive the eccentric plate 13 to rotate. When the eccentric plate 13 rotates, the linkage column 14 can be driven to move adaptively in the linkage channel 10 to drive the displacement plate 9 to move linearly. When the displacement plate 9 moves, the linkage rod 6 can be driven to move in the linkage channel 10, and the linkage rod 6 can drive the sand carrying cylinder 4 to tilt under the support of the support shaft 2. Since the eccentric plate 13 rotates in a circle, the displacement plate 9 will return to the original position after the eccentric plate 13 rotates one circle. Under the continuous rotation of the eccentric plate 13, the sand carrying cylinder 4 can be driven to swing.

[0038] During the swinging of the sand carrying cylinder 4, the transmission bevel gear 18 can move at the driving bevel gear 19 to drive the mixing sand shaft 16 to rotate. Then, the mixing sand roller 17 can contact the sand to realize sand mixing.

[0039] The above is only a preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sand mixing device for processing elbows, characterized by, The utility model provides a sand mixing device, including support frame (1), the top of support frame (1) is fixedly connected with support axle stem (2), the middle part of support axle stem (2) is rotatably connected with assembly frame (3), the bottom of assembly frame (3) is fixedly connected with sand carrying cylinder (4), one end of support frame (1) is provided with guide through groove (5), sand carrying cylinder (4) is fixedly connected with linkage lever (6) near one side of guide through groove (5), and linkage lever (6) is also movably connected in the inside of guide through groove (5), and the one end of support frame (1) near linkage lever (6) is provided with transmission assembly (7), and transmission assembly (7) is used for cooperation linkage lever (6) and drives sand carrying cylinder (4) swing, and the inside of sand carrying cylinder (4) is provided with sand mixing subassembly (8).

2. A sand mixing device for processing a bend according to claim 1, characterized in that The transmission assembly (7) includes displacement plate (9), linkage through groove (10), extension seat (11) and drive motor (12), the one end of support frame (1) near linkage lever (6) is slidably connected with displacement plate (9), the middle part of displacement plate (9) is provided with linkage through groove (10), and the one end of linkage lever (6) away from sand carrying cylinder (4) is also movably connected in the inside of linkage through groove (10), the bottom of the one end of support frame (1) is fixedly connected with extension seat (11), the top of extension seat (11) is fixedly connected with drive motor (12), the output of drive motor (12) is fixedly connected with eccentric plate (13), the one end of eccentric plate (13) away from drive motor (12) is fixedly connected with linkage column (14), and linkage column (14) is also movably connected in the inside of linkage through groove (10).

3. A sand mixing device for processing a bend according to claim 1, characterized in that, The sand mixing subassembly (8) includes positioning plate (15), sand mixing shaft (16), sand mixing roller (17) and transmission bevel gear (18), the top of the inside of sand carrying cylinder (4) is fixedly connected with positioning plate (15), the middle part of positioning plate (15) is vertically rotatably connected with sand mixing shaft (16), the bottom of sand mixing shaft (16) is fixedly connected with sand mixing roller (17), the top of sand mixing shaft (16) is fixedly connected with transmission bevel gear (18), one end of support axle stem (2) is fixedly connected with drive bevel gear (19), and drive bevel gear (19) is meshed with transmission bevel gear (18).

4. A sand mixing device for processing a bend according to claim 1, characterized in that, The bottom of sand carrying cylinder (4) is fixedly connected with sand carrying pipe, and the middle part of sand carrying pipe is provided with a valve.

5. A sand mixing device for processing a bend according to claim 1, wherein The guide through groove (5) is arc-shaped, and the inside of the guide through groove (5) and the outside of the linkage lever (6) are both fixedly connected with wear-resistant rings.

6. A sand mixing device for processing a bend according to claim 2, characterized in that, The one end of the support frame (1) near the linkage lever (6) is fixedly connected with a linear guide rail, the top and bottom of the displacement plate (9) are both fixedly connected with linear sliders, and the displacement plate (9) is slidably connected to the linear guide rail through the linear sliders.

7. A sand mixing device for machining a bend according to claim 3, characterized in that The top of the positioning plate (15) is fixedly connected with a protective shell, and the protective shell is provided with an avoiding opening on the side close to the support axle stem (2).

8. A sand mixing device for processing a bend according to claim 3, characterized in that, The outside of the sand mixing roller (17) is fixedly connected with sand mixing fan blades, and the number of sand mixing fan blades is not less than two.

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